Formation of a Quasi-Stationary Discharge in the Explosive-Emission Electron Sources  

作　　者：Eduard N. Abdullin Gennady P. Bazhenov Yury P. Bazhenov Alexander V. Morozov 

机构地区：[1]Microwave Electronics Laboratory, Institute of High Current Electronics SB RAS, Tomsk 634055, Russia

出　　处：《Journal of Energy and Power Engineering》2012年第7期1177-1182,共6页能源与动力工程（美国大卫英文）

摘　　要：Formation of a quasi-stationary discharge or quasi-stationary emission mode in the explosive-emission electron sources is related to the current limitation resulting from the emissive ability saturation of cathode plasma with its expansion. The paper shows that in the process of the discharge current stabilization in the explosive-emission sources with the point- or blade-type emitters the essential role belongs to the electron beam space charge. Availability of the space charge results in limitation of the current growth velocity at the initial discharge phase and, hence, restricts the emissive ability of the cathode plasma and contributes to its saturation. In the vacuum diodes with multiemitter cathodes, the space charge availability increases the cathode operation stability and can provide obtaining of quasi-stationary beam current values or close to them resulting in formation of a plasma emission surface at the cathode close to the continuous one.

关 键 词：Explosive-emission electron source point- and blade-type emitters space charge of the beam quasi-stationary mode. 

分 类 号：TM923.321[电气工程—电力电子与电力传动] TP212[自动化与计算机技术—检测技术与自动化装置]